Improvement in apparatus foe cobffipressiif x  air



ills@ n 'Q .iw I a"dgn we se. L. 1n .ed tant @mail @that ce .e w W Magneet FRANQOIS SIMEON DUMONT, 0F NEW YORK, N. Y.

Letters Patent No. 89,390, (lated April 27, 1869.

INIPROVEMENT IN APPARATUS FOR COBTRESSING- AIR.

To all 'whom it may concern:

Be it known that I, Fna-Noors SIMEON DUMONT, of the city, county, and State of New York, have iuvented a new and improved Apparatus for Compressing' Air; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming a part of this specification', in which- Figure 1 represents a front view, partly in section, of my improved apparatus for compressing air, the plane of section being taken in the line x a', iig. 2.

Figure 2 is a sectional elevation of the same, taken on the plane-of the line 'y y, iig. 1.

Similar letters of reference indicate corresponding parts.

This invention relates to an improved apparatus for compressing air; and

It consists in the peculiar construction of the same, as will be hereinafter more fully described.

A, in the drawing, represents a hollow ring, or an annular vessel, made of sheet-metal, or other suitable material, and secured by means of spokes, or arms a a, eoncentrically to a tubular shaft, B, which has its bearings in suitable xed posts, standards, or pendants.

The interior of the vessel A is vertically above the axle B, divided'by means of a partition, b, as shown in iig. 1.

The shaft or vessel is provided with a suitable lever, or other equivalent device, for imparting rocking motion to it. The lower part of the vessel A is filled with water or other suitable liquid, through a tube, h, as shown in iig. 1, whereby two air-compartments, c and d, are formed in the upper part of the vessel A, above the water-line.

Each of th'ese compartments is, by means of atube,

C, connected with the tubular axle, B, as is clearly shown in iig. 1.

In each tube-C is arranged a valve, e, of suitable construction, said valves being, by means of a spring,

or otherwise, held against their seats from below, so that they can be opened by pressure from above, and are closed when such pressure ceases. v

Each compartment c l isA connected by a tube,or aperture f, with the atmosphere on the outside, a valve, g, in said aperture, preventing air from entering the vessel, unless the pressure from without' is stronger than that on the inside.

As the vessel is oscillat-ed, the water will rise alternately in the compartments c d, and will shorten them, thereby driving the air contained therein, or at least a portion of it, through the tube C, into the hollow axle B, the pressure brought against the. air in the compartment causing the Valve e to open.

As soon as the water recedes from the compartment, the valve e instantaneously closes, and thatin the other compartment opens.

When the water recedes from a compartment, a partial vacuum is produced in such compartment, causing the valve g', that pertains thereto, to open, and to let in fresh air, said valve closing as soon as the motion of the vessel is again reversed.

In this manner a continuous, uninterrupted stream of any kind of .gas or water is forced by the apparatus linto a room or receptacle, either to be compressed or for other purposes, as hereinbefore set forth.

Having thus described my invention,

What I claim as new, and desire to secure by Letters Patent isl The machine for compressing air, consisting of the hollow annular vessel A, divided by the partition b, above the water-line, into two compartments, c d, each provided with an air-aperture, f, and valve g, and communicating with the hollow axle B, by means of the pipes C G, containing valves e e, all arranged and operating as described for the purpose specitied.

y F. S. DUMONT. Witnesses:

WM. F. MCNAMARA, ALEX. F. ROBERTS. 

